the catalyst that p

1. Khlood Salim Dawood
MSC in Chemical Engineering
University of Technology
Chemical Engineering Processing and Oil
Refinery MSC.

2. 1. Definition of Catalysts
2. Why Using the Catalysts?
3. Types of Catalysts
4. Application of Catalysts
5. Catalyst Characteristic
6. Solid Catalyst Composition
7. Preparation of catalysts
8. Characterization of Catalysts
9. Reference
Outlines

3. Definition of Catalysts
 Catalyst:- A substance that alters the
reaction rate of a particular chemical
reaction.
 Chemically unchanged at the end of the
reaction
 Two classes of catalyst:-
Negative
Catalyst Positive
Catalyst
Increase the
rate of
reaction
Decrease the
rate of
reaction

4. Why Using the Catalysts?
 The main aim of using the catalyst to
control the reaction by reducing the
activation energy and increase the
selectivity.

5. Types of Catalysts
Homogenous Catalyst
Heterogeneous Catalyst
Acidic Catalyst
Basic Catalyst
Auto Catalyst
Enzyme Catalyst

6. Application of Catalysts
 Usage Catalyst in Chemical Industrial
Cost is always the greatest concerns
of manufactures.
How can we get high yields of
products.

7. Catalyst Characteristic
Stability of Catalyst
Ability of Catalyst
Surface Area of Solid
Catalyst
Activity
Selectivit
y Physical
Properties

8. Solid Catalyst Composition
Catalyst composition
1. Support Catalyst
2. Active Metal
3. Promoter

9. Preparation of catalysts
 Impregnation
Fill the pores of support with a metal salt
solution of sufficient concentration to give the
correct loading.

10. Characterization of Catalysts

11. Characterization of Catalysts

12. Reference
[1] de León, J.D., Zavala-Sánchez, L.A., Suárez-Toriello,
V.A., Alonso Nunez, G., Zepeda, T.A., Yocupicio, R.I., de los
Reyes, J.A. and Fuentes, S., 2017. Support effects of NiW
catalysts for highly selective sulfur removal from light
hydrocarbons. Applied Catalysis B: Environmental, 213,
pp.167-176.
[2] Li, P., Liu, X., Zhang, C., Chen, Y., Huang, B., Liu, T.,
Jiang, Z. and Li, C., 2016. Selective hydrodesulphurization of
gasoline on Co/MoS2±x catalyst: Effect of sulfur defects in
MoS2±x. Applied Catalysis A: General, 524, pp.66-76.
[3] Barbulescu, A. and Barbes, L., 2017. Mathematical
modeling of sulfur dioxide concentration in the western part
of Romania. Journal of environmental management, 204,
pp.825-830.